CVE-2022-49968 (GCVE-0-2022-49968)
Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-08-05 08:56
VLAI
EPSS
VEX
Title
ieee802154/adf7242: defer destroy_workqueue call
Summary
In the Linux kernel, the following vulnerability has been resolved:
ieee802154/adf7242: defer destroy_workqueue call
There is a possible race condition (use-after-free) like below
(FREE) | (USE)
adf7242_remove | adf7242_channel
cancel_delayed_work_sync |
destroy_workqueue (1) | adf7242_cmd_rx
| mod_delayed_work (2)
|
The root cause for this race is that the upper layer (ieee802154) is
unaware of this detaching event and the function adf7242_channel can
be called without any checks.
To fix this, we can add a flag write at the beginning of adf7242_remove
and add flag check in adf7242_channel. Or we can just defer the
destructive operation like other commit 3e0588c291d6 ("hamradio: defer
ax25 kfree after unregister_netdev") which let the
ieee802154_unregister_hw() to handle the synchronization. This patch
takes the second option.
runs")
Severity
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
58e9683d14752debc6f22daf6b23e031787df31f , < dede80aaf01f4b6e8657d23726cb4a3da226ec4c
(git)
Affected: 58e9683d14752debc6f22daf6b23e031787df31f , < bed12d7531df1417fc92c691999ff95e03835008 (git) Affected: 58e9683d14752debc6f22daf6b23e031787df31f , < 23a29932715ca43bceb2eae1bdb770995afe7271 (git) Affected: 58e9683d14752debc6f22daf6b23e031787df31f , < 9f8558c5c642c62c450c98c99b7d18a709fff485 (git) Affected: 58e9683d14752debc6f22daf6b23e031787df31f , < 15f3b89bd521d5770d36a61fc04a77c293138ba6 (git) Affected: 58e9683d14752debc6f22daf6b23e031787df31f , < afe7116f6d3b888778ed6d95e3cf724767b9aedf (git) Affected: a2363e2d88bf50022ee643c49ee5d4f7e8c915ea (git) Affected: 4.17.19 , < 4.18 (semver) |
guessed | |
| Linux | Linux |
Affected:
4.18
Unaffected: 0 , < 4.18 (semver) Unaffected: 4.19.258 , ≤ 4.19.* (semver) Unaffected: 5.4.213 , ≤ 5.4.* (semver) Unaffected: 5.10.142 , ≤ 5.10.* (semver) Unaffected: 5.15.66 , ≤ 5.15.* (semver) Unaffected: 5.19.8 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix) |
guessed |
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"id": "CVE-2022-49968",
"lastModified": "2026-08-04T10:18:01.260",
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"Patch"
],
"url": "https://git.kernel.org/stable/c/15f3b89bd521d5770d36a61fc04a77c293138ba6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/23a29932715ca43bceb2eae1bdb770995afe7271"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/9f8558c5c642c62c450c98c99b7d18a709fff485"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/afe7116f6d3b888778ed6d95e3cf724767b9aedf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/bed12d7531df1417fc92c691999ff95e03835008"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/dede80aaf01f4b6e8657d23726cb4a3da226ec4c"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
},
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:15:25+00:00",
"cve": "CVE-2022-49968",
"id": "CVE-2022-49968",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ieee802154/adf7242: defer destroy_workqueue call",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49968.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-29T02:24:23Z",
"cve": "CVE-2022-49968",
"id": "CVE-2022-49968",
"initial_release_date": "2025-06-19T03:45:19Z",
"product_status:known_affected": "370",
"product_status:known_not_affected": "360",
"product_status:recommended": "273",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-49968",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49968.json",
"version": "43"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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